air

The composition of the air is affected by humans. Many components of the air are, above a certain concentration, a threat to humans and animals and affect plants, water bodies, soils and even buildings and materials.

Benzene is an organic, chemical compound with an aromatic odour. It is carcinogenic and a content of petrol.

Lead is a toxic heavy metal and usually occurs bound to other substances. In ambient air lead is measured bound to particulate matter.

Nickel belongs to the heavy metals and usually occurs bound to other substances. In ambient air arsenic is measured bound to particulate matter.

Cadmium is toxic and cancerogenic. It belongs to the heavy metals and usually occurs bound to other substances. In ambient air arsenic is measured bound to particulate matter.

Benzo(a)pyrene is a polycyclic aromatic hydrocarbon. It is used as a marker for the carcinogenic risk of polycyclic aromatic hydrocarbons in ambient air.